What does Xuanqiong of Qingzhige mean?

The song of youth proclaims Qiong, which means that you will touch the sky. According to the relevant information asked, the poem is "The Song of Youth is mysterious, proficient in daytime, devoted to Qi Xin and fighting ugliness." It means that your ambition has touched the sky, your sincerity will last forever, and you will join hands with Qixin to put down the rebellion. This poem is from Biography of Liang Shu and Wang Sengbian.